`sort()`

function is used to **sort the items of a list**. List can be sort different ways ascending or descending order. This is a part of python programming language and a hand tool for quickly sort the list items. There is another built in function named `sorted()`

can be use for sorting purpose. The main difference between `sort()`

and `sorted()`

is that `sort()`

is a list method which *does no return* anything and only sort the items and on the other side `sorted()`

is a function which *return* the sorted list.

`3, 8, 2, 5, 1`

) and we can sort it with `sort()`

method if we did not pass any argument the method will sort the list in ascending order and we will see an output (`1, 2, 3, 5, 8`

).**Ascending order**shows that value item starts from smaller values to larger vales. Which is the above case.

**Descending order**means that value will be sort from larger value to smaller value.

We can sort any list that contains numbers or characters or words.

## Syntax of `sort()`

Function

The syntax of `sort()`

function in Python is:

list.sort(key=None, reverse=False)

key and reverse are the arguments. The `sort()`

method can be used without these arguments.

## Parameters of `sort()`

Function in Python

`key`

– Where `key`

is an argument which takes a function and serve it as a key and compare the items and sort the final result. Key parameter is optional.

`reverse`

– Where `reverse`

is an argument which can be assigned true or false and there two value determine the order of the sorted list. Reverse parameter is also optional.

## Compatibility

`sort()`

function is available and compatible with both Python `2.x`

and `3.x`

. This function is one of python list methods.

## Return Value of `sort()`

Function in Python

`sort()`

function just sort the items of the list and did not return anything.

## Python `sort()`

Function Example 1

# a fruits list fruit = ['apple', 'grapes', 'banana'] # Sort the list fruit.sort() #Print the sorted fruit list print(fruit)

Output:

`['apple', 'banana', 'grapes']`

After sorting banana and grapes change heir positions.

## Python `sort()`

Function Example 2

# a num list num = [4, 8, 2, 5, 1, 10] # Sort the list num.sort(reverse=True) #Print the sorted fruit list print(num)

Output:

`[10, 8, 5, 4, 2, 1]`